scholar          
noun [ C ] uk/ˈskɒl.ər/ us/ˈskɑː.lɚ/
C1 (尤指大学的)学者
a person who studies a subject in great detail, especially at a university
  a classics/history scholar 研究古典文学/历史的学者 
 Dr Miles was a distinguished scholar of Russian history. 迈尔斯博士是一位研究俄国历史的著名学者。 
  informal聪颖好学者;善于学习者 
someone who is intelligent or good at learning by studying
  David's never been much of a scholar. 戴维从来不是一个善于学习的人。 
 - More examples
 - a leading scholar of Islamic economics
 - a political scholar at the Brookings Institution
 - a visiting scholar at the University of Tokyo
 - Most scholars assert that Christ was born somewhere around this time.
 - The theory has been widely discredited by scholars.